JP3162337B2 - Shield housing structure and shield member - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shield housing structure for shielding electromagnetic waves and for waterproofing, for example, for housing electronic devices and the like.

[0002]

2. Description of the Related Art In recent years, electronic devices such as computers and communication devices have been digitized and operated at high speeds, and with the widespread use of these devices, electromagnetic waves emitted from the electronic devices to the outside or external devices. Therefore, the influence of electromagnetic waves applied to the electronic device has become a problem. For this reason, a device has been devised in which the electronic device is housed in a metal shield case to prevent the influence of electromagnetic waves. At this time, in this type of shield housing, it is preferable to dispose an electromagnetic wave shielding member in this gap in order to prevent leakage and intrusion of electromagnetic waves from the gap between the opening and the lid closing the opening. General.

[0003] By the way, when an electromagnetic wave shielding member made of, for example, a silicone elastic core material covered with a wire mesh is used, when the shield housing is installed outdoors, rainwater or the like permeates through the gap of the wire mesh of the electromagnetic wave shielding member. There is a possibility that insulation failure may be induced in the stored electronic device. For this reason, Japanese Patent Application Laid-Open No. 8-172289 proposes that a waterproof packing be sandwiched between the above-mentioned peripheral portion of the opening and the peripheral portion of the lid together with the electromagnetic wave shielding member. For example, as shown in FIG.
The shield member 103 is sandwiched between the inner surface 101a of the lid 101 and the opening peripheral portion 102a of the box 102 to prevent electromagnetic waves and rainwater from entering. FIG. 9 shows a state in which a waterproof packing 103a having a square cross section is sandwiched on the side close to the outside air, and an electromagnetic wave shielding member 103b having a circular section is sandwiched inside the waterproof packing 103a.

[0004]

By the way, in order to effectively shield and waterproof the electromagnetic wave, the electromagnetic wave shielding member and the waterproof packing are sufficiently adhered to the periphery of the opening of the shield housing and the periphery of the lid. It is necessary to compress the electromagnetic wave shielding member and the packing. For example, the electromagnetic wave shielding member generally compresses at least 20 to 30% or more.
Therefore, in a state where the opening of the shield housing is closed by the lid, the repulsive force due to the elastic deformation of the electromagnetic wave shielding member and the waterproof packing always acts on the periphery of the opening of the shield housing and the periphery of the lid. Will be. Particularly, in a stationary large shield case, one side of the lid is, for example, 1.5 m to
Since it is as large as 2 m, especially the center of the lid is easily bent, and as a result, the compression ratio of the electromagnetic wave shielding member is reduced and the electromagnetic wave shielding effect of the shield housing is significantly impaired. For this reason, it is necessary to reinforce the lid, and as a result, there is a problem that the shield housing becomes expensive.

Further, when the electromagnetic wave shielding member and the waterproof packing are arranged side by side around the opening of the shield case, there is a problem that the width of the opening around the opening of the box becomes large and the opening becomes small. For example, in FIG. 9, the electromagnetic wave shielding member 103b and the waterproof packing 103a are
2 are arranged side by side around the opening 102a,
The opening becomes smaller.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and a shield sandwiched between a peripheral portion of an opening of a box in a shield housing and a peripheral portion of a lid closing the opening. Providing a shield housing structure that reduces the load acting on the periphery of the lid in the opening and closing direction by means of members, effectively prevents electromagnetic wave leakage and intrusion, and allows the box opening of the shield housing to be enlarged. The purpose is to do.

[0007]

Means for Solving the Problems and Effects of the Invention According to a first aspect of the present invention, there is provided a shield housing structure including a box having an opening, and a box having an opening. Consisting of a lid that closes and opens, and a shield member that has an electromagnetic wave shielding function and a waterproof function, and is disposed in a first gap formed by the peripheral portion of the opening of the box and the inner surface of the lid. In the shielded housing structure described above, an electromagnetic wave shielding wall substantially perpendicular to the inner surface of the lid is provided, and a surface facing the electromagnetic wave shielding wall is provided around the opening of the box, so that the electromagnetic wave shielding wall and the box A second gap communicating with the first gap at a substantially right angle in cross section is formed between the first gap and the periphery of the opening, and at least a part of the shield member is sandwiched between the electromagnetic wave shielding wall and the periphery of the opening of the box. It is characterized in that it is arranged in the second gap.

Here, the shield member only needs to be able to achieve both the electromagnetic wave shielding function and the waterproof function, and does not have to be integrally formed. For example, an electromagnetic wave shielding member having an electromagnetic wave shielding function and a waterproof packing having a waterproof function are used.
It is also conceivable to prepare and arrange two separate members, respectively. In this case, at least one of the electromagnetic wave shielding member and the waterproof packing is disposed in the second gap. As the electromagnetic wave shielding member, for example, a known material such as a silicone elastic material as a core material covered with a wire net or a thin plate-shaped conductive member may be used.

The term "waterproof" refers to the general rules of waterproof test (C092) for electrical equipment and wiring materials of Japanese Industrial Standard.
The types classified as 0), namely, drip-proof type, rain-proof type, lash-proof type, jet-proof type, water-proof type, water-proof type, water-proof type, and water-proof type. In other words, according to the purpose of use of the shield housing structure, the waterproof packing described above may be, for example, a drip-proof packing,
Alternatively, a packing for rain prevention may be used.

Here, in order to facilitate understanding of the technical idea of the present invention, the present invention will be specifically described based on an end view shown in FIG. To facilitate understanding of the description of the present invention, the structure of a conventional shield case will be briefly described first. As shown in FIG. 5A, conventionally, a waterproof packing 103a and an electromagnetic wave shielding member 103b are arranged in a gap between an inner surface 101a of a lid 101 and an opening peripheral portion 102a of a box 102, and electromagnetic waves are transmitted through the gap. And the entry of rainwater. For this reason,
Waterproof packing 10 compressed by lid 101 and box 102
There has been a situation in which a repulsive force due to the elastic deformation of the electromagnetic wave shield member 3a and the electromagnetic wave shield member 103b acts in the opening and closing direction of the lid 101, and particularly the central portion of the lid 101 is bent. In order to avoid this situation, it is necessary to reinforce the lid 101, and there has been a problem that the shield casing becomes expensive.
In addition, the waterproof packing 103a and the electromagnetic wave shielding member 1
When 03b are arranged side by side, there is also a problem that the width r3 of the opening peripheral portion 102a of the box 102 becomes large and the opening becomes small (see FIG. 9).

FIGS. 5 (b) and 5 (c) show a shield housing structure of the present invention made to solve such a problem.
Example Hereinafter, the shield housing structure of the present invention will be described. In the shielded housing structure of the present invention, the electromagnetic wave shielding wall is provided substantially perpendicular to the inner surface of the lid, and a surface facing the electromagnetic wave shielding wall is formed around the opening of the box. A gap (a second gap) was formed with the periphery of the opening. The second gap communicates with the first gap formed by the inner surface of the lid and the periphery of the opening of the box at a substantially right angle in cross section. For example, as shown in FIG. 5B, an electromagnetic wave shielding wall 11 b is provided on the opening side with respect to the opening peripheral portion 12 a of the box 12, and the surface 12 b facing the electromagnetic wave shielding wall 11 b is formed in the box 1.
A second gap α2 is formed in the peripheral portion 12a of the second opening to communicate with the first gap α1 at a substantially right angle in cross section. Further, as shown in FIG. 5C, an electromagnetic wave shielding wall 21b is provided on the side opposite to the opening with respect to the opening peripheral portion 22a of the box 22, and a surface 22b facing the electromagnetic wave shielding wall 21b is provided.
Is formed in the peripheral portion 22a of the opening of the box 22 to form the second gap β
It is also conceivable to form 2 and communicate with the first gap β1 at a substantially right angle in cross section.

Then, a part of the shield member is sandwiched between the electromagnetic wave shielding wall and the periphery of the opening of the box, and a part of the shield member is arranged in the second gap. That is, in FIG. 5B, the electromagnetic wave shielding member 13b as the shielding member and the electromagnetic wave shielding member 13b of the waterproof packing 13a are shown.
Are disposed in a second gap formed by the electromagnetic wave shielding wall 11b and the opening peripheral portion 12a of the box 12. FIG.
In (c), the electromagnetic wave shield member 23b as a shield member and the waterproof packing 23 of the waterproof packing 23a are provided.
a is the electromagnetic wave shielding wall 21b and the opening peripheral portion 22a of the box 22
And are arranged in the second gap formed by.

When the shield member is an electromagnetic wave shield member having an electromagnetic wave shielding function and a waterproof packing having a waterproof function as described above, in order to prevent rainwater from entering the gap, it is close to the outside air. In general, a waterproof packing having a waterproof function is disposed in a gap on the side of the waterproof packing. In FIG.
, And the electromagnetic wave shielding member 13b is
May be arranged in the gap α1. Similarly, in FIG. 5C, the waterproof packing 23a may be arranged in the first gap β1, and the electromagnetic wave shield member 23b may be arranged in the second gap β2.

In the example shown in FIGS. 5B and 5C, the electromagnetic wave shielding member 1 having an electromagnetic wave shielding function is used.
3b, 23b and waterproof packing 13 having a waterproof function
The shield members are disposed as separate members a and 23a. The shield member is an integrally formed member including at least an electromagnetic wave shield member having an electromagnetic wave shielding function and a waterproof packing having a waterproof function. At least one of the waterproof packing is second
May be arranged in the gap. If the shield member is integrally formed in this way, the work of attaching the electromagnetic wave shield member and attaching the waterproof packing at the time of attachment is eliminated, and the attachment work is simplified.

Further, it is conceivable that the above-mentioned electromagnetic wave shielding wall is formed integrally with the shield member as a part of the shield member. For example, in FIG.
Is a waterproof packing 33a as a waterproof packing, and a conductive member 33 as an electromagnetic wave shielding wall and an electromagnetic wave shielding member.
b, and an elastomer material 33c interposed for integrating the waterproof packing 33a and the conductive member 33b. Here, the conductor 33b is bent so that one end thereof is in close contact with the lid 31, protrudes substantially vertically from the inner surface 31a of the lid 31, and serves as an electromagnetic wave shielding wall around the opening 32a of the box 32. The other end 33d is folded back into a U-shaped cross-section, and the folded-back portion is formed into a V-shaped cross-section to form a box 32 as an electromagnetic wave shielding member. The second gap between the opening and the peripheral portion 32a is closed. As described above, by integrally forming the shield member including the electromagnetic wave shielding wall, there is no need to protrude the electromagnetic wave shielding wall from the lid, which is advantageous in that there is no need to process the lid.

In the above-described shield housing structure of the present invention, a part of the shield member having the electromagnetic wave shielding function and the waterproof function is arranged in the second gap substantially perpendicular to the first gap. The repulsive force due to the elastic deformation of the shield member arranged in the gap 2 acts in a direction substantially perpendicular to the opening and closing direction of the lid. Therefore, as compared with the case where the shield member is arranged only in the first gap, the repulsive force acting in the opening and closing direction of the lid can be reduced, and the load applied to the peripheral portion of the lid can be reduced.

Also, electromagnetic waves that enter from the outside of the shield housing or leak from the inside of the shield housing can be connected to the first gap and the second gap at substantially right angles. The possibility that the number of times of reflection of the electromagnetic wave increases is higher than that of the case, and the degree of attenuation increases due to reflection and interference between the electromagnetic waves. Therefore, the electromagnetic wave can be effectively shielded by the electromagnetic wave shield member disposed in at least one of the first and second gaps.

Further, by arranging a part of the shield member in the second gap, the length of the first gap can be reduced as compared with the conventional configuration in which all the shield members are arranged in the first gap. it can. As a result, the width of the periphery of the opening of the box becomes smaller, and the opening of the box becomes larger. For example, FIG.
In (b), if the electromagnetic wave shielding member arranged in the second gap α2 is fixed to the electromagnetic wave shielding wall 11b of the lid 11, the width of the opening peripheral portion 12a of the box 12 becomes r1, and the conventional box It becomes smaller than the width of the opening peripheral portion 102a of the opening 102. Similarly, in FIG. 5C, the width of the opening peripheral portion 22a of the box 22 is r2, which is smaller than the width of the opening peripheral portion 102a of the conventional box 102. Therefore, FIG.
In FIG. 5B and FIG. 5C, the opening can be made large.

Meanwhile, it is conceivable that the surface provided around the electromagnetic wave shielding wall and the opening of the box may function as an antenna. In this case, when the electromagnetic wave of a specific frequency resonates in the second gap, radiation noise of that frequency increases. Then, at least one of the surfaces provided on the electromagnetic wave shielding wall or the peripheral portion of the opening of the box facing the electromagnetic wave shielding wall is set so that the second gap gradually widens toward the first gap. It is preferable to provide at a predetermined angle with respect to the inner surface. In this case, for example, the surface provided around the opening of the box is provided at a predetermined angle with respect to the inner surface of the lid, for example, the angle on the opening side is 85 degrees. As a result, the resonance points can be dispersed, and the resonance of electromagnetic waves of a specific frequency can be prevented, thereby suppressing radiation noise. In addition, the reflection angle of the intruding electromagnetic wave can be changed, and the possibility that the number of times of reflection of the electromagnetic wave increases increases. Therefore, the degree of attenuation of the electromagnetic wave increases due to reflection and interference between the electromagnetic waves. Furthermore, as described above, considering that the electromagnetic wave shielding wall is formed integrally with the shield member as a part of the shield member and that this shield member is attached to the lid side, when the opening is closed by the lid, the shield member is It is conceivable that a load larger than the load applied when the lid is closed and pressed against the periphery of the opening of the box acts on the shield member and the lid. However, as described above, the second
Is gradually widened toward the first gap, so that the burden on the shield member or the lid can be reduced when the opening is closed by the lid. As a result, the deterioration of the shield member and the lid can be prevented.

Although the invention has been described above as an invention of a shield housing structure including a box, a lid, and a shield member, the invention can be realized as an invention of a shield member used in the above-described shield housing structure. As described above, as the shield member, the electromagnetic wave shield member and the waterproof packing can be separately used, the electromagnetic wave shield member and the waterproof packing can be integrally formed, and the electromagnetic wave shield wall can also be shielded. It is also conceivable to form it integrally as a part of the member.
For example, the configuration of the shield member in which the electromagnetic wave shielding wall is also integrally formed closes a gap between the periphery of the opening having the opening and the periphery of the lid that closes and opens the opening of the box. An electromagnetic wave shielding member used for
A waterproof packing having a waterproof function, an electromagnetic wave shielding wall connected to the waterproof packing at a substantially right angle in cross section and having an electromagnetic wave shielding function, and an electromagnetic wave shielding member connected to the electromagnetic wave shielding wall are provided. When the portion is closed, the waterproof packing is sandwiched between the peripheral portion of the opening of the box and the inner surface of the lid, and the first packing is formed by the peripheral portion of the opening of the container and the inner surface of the lid. And a second gap is formed between the electromagnetic wave shielding wall and the periphery of the opening of the box so as to communicate with the first gap at a substantially right angle in cross section. The second gap is closed by pressing against the periphery of the opening.
As described above, if the electromagnetic wave shielding member and the waterproof packing are integrally formed, it is advantageous in that the time and effort required for mounting are reduced. Furthermore, if the electromagnetic wave shielding wall is also formed integrally, there is no need to provide the electromagnetic wave shielding wall on the lid, which is advantageous in that processing on the lid is not required.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an end view showing a shield housing structure 1 of the embodiment. FIG. 1 (a)
FIG. 1B shows a state in which the opening is opened, and FIG. 1B shows a state in which the opening is closed.

The shield housing structure 1 includes a box 2 and a lid 3
, A shield member 4, and a hinge 5 for connecting the peripheral portion 3 c of the lid 3 to the opening peripheral portion 2 a of the box 2 so that the lid 3 can be opened and closed with respect to the box 2. An opening is formed on one surface of the box 2. In the present embodiment, the opening is substantially square, and the opening peripheral portion 2a surrounding the opening formed in the box body 2 is bent inward at a right angle in cross section. Is folded so that the cross-section becomes an acute angle close to a right angle in the direction of, and further, the tip of the folded portion is folded so as to be parallel to the inner surface 3a of the lid 3 when the opening is closed by the lid 3. It has a U-shaped cross section.

The cover 3 is a substantially square member for closing and opening the opening of the box 2. The peripheral portions 3 c of the cover 3 at four sides are substantially perpendicular to the inner surface 3 a of the cover 3. Is provided with a locking wall 3b, and the shield member 4 is fixed with a double-sided adhesive tape so as to be in close contact with the outer surface of the locking wall 3b of the lid and the inner surface 3a of the lid 3.

The box 2 and the lid 3 are made of metal and made of a material such as stainless steel that does not transmit electromagnetic waves. Next, the shield member 4 fixed to the lid 3
Will be described in detail with reference to the end views of FIGS.

FIG. 2 shows a peripheral portion 3 of the lid 3 shown in FIG.
c and the shield member 4 fixed to the peripheral portion 3c thereof are shown in an enlarged manner. FIG. 3 shows a state where the shield member 4 is compressed and adheres to the opening peripheral portion 2 a of the box 2 when the cover 3 closes the opening of the box 2.

As described above, the shield member 4 is composed of the locking wall 3b provided substantially perpendicular to the cross section from the inner surface 3a on the peripheral portion 3c of the lid 3 and the double-sided adhesive tape on the inner surface 3a of the lid 3. It is fixed at. The shield member 4 is formed integrally with a waterproof packing 6 having a waterproof function and a conductive member 7 having an electromagnetic wave shielding function.

The waterproof packing 6 is formed of an elastically deformable material such as a silicone elastic material. Waterproof packing 6
Has a hollow cylindrical section 6a and a wall section 6b formed continuously from the cylindrical section 6a and substantially perpendicular to the inner surface 3a of the lid 3 for fixing the conductive member 7. I have. Here, the cylindrical portion 6a performs a waterproof function, and is compressed by the peripheral portion 2a of the box 2 as shown in FIG. 2a and first gap γ formed by inner surface 3a of lid 3
1 is closed. At this time, in order to enhance the airtightness, three convex portions 6c are formed at the engagement portion of the cylindrical portion 6a with the opening peripheral portion 2a of the box body 2.

The conductive member 7 is a thin metal member.
A wall portion 7b which is fixed in close contact with the outside of the wall portion 6b of the waterproof packing 6, and a lid contact portion 7d which is bent at a substantially right angle in cross section from the wall portion 7b and which is in close contact with the inner surface 3a of the lid portion 3; And a claw portion 7a which is largely folded from the wall portion 7b in the direction of the cylindrical portion 6a of the waterproof packing 6 and draws a gentle curve in the folding direction. On the claw portion 7a,
As shown in FIG. 4, a notch is provided with a predetermined width, and a small claw 7c bent inward from the claw 7a is provided in this notch.

When the cover 3 closes the opening of the box 2, the wall 7 b of the conductive member 7, as shown in FIG. A second gap γ2 communicating with the gap γ1 at a substantially right angle in section is formed. At this time, the claw portion 7a of the conductive member 7 is
And elastically deforms toward the wall 7b side of the conductive member 7 and
Is closed.

Since the notch 7a of the conductive member 7 is provided with the notch having a predetermined width as described above, the small claw 7c provided in the notch is centered on the base of the notch. Elastically deforms to the position where As a result, box 2
Is pressed into contact with the peripheral portion 2a of the opening to reliably conduct with the box 2, and the second gap γ2 is reliably closed by aligning the claw portion 7a and the small claw portion 7c.

The wall 7b of the conductive member 7 corresponds to an "electromagnetic wave shielding wall", and the claw 7a and the small claw 7c of the conductive member 7 are provided.
Corresponds to the “electromagnetic wave shielding member”. According to the shield housing structure 1 of the present embodiment configured as described above, the cylindrical portion 6a of the waterproof packing 6 of the shield member 4 can prevent rainwater and the like from entering the inside of the box 2, and The conductive member 7 of the shield member 4 can prevent the electromagnetic wave from leaking from the inside of the box 2 to the outside and from entering the inside from the outside of the box 2.

At this time, the cylindrical portion 6a of the waterproof packing 6 of the shield member 4 is disposed in the first gap γ1 formed between the inner surface 3a of the lid 3 and the opening peripheral portion 2a of the box 2. However, the claw 7a of the conductive member 7 of the shield member 4 is connected to the wall 7b of the conductive member 7 and presses against the peripheral portion 2a of the opening of the box 2 so that the second gap γ2 Elastically deform at Therefore, considering the repulsive force due to the elastic deformation of the shield member 4 as a whole, the repulsive force from the waterproof packing 6 disposed in the first gap γ1 acts in the opening and closing direction of the lid 3, but the first The repulsive force due to the elastic deformation of the conductive member 7 disposed in the second gap γ2 communicating with the gap γ1 at a substantially right angle in cross section acts on the cover 3 in a direction substantially perpendicular to the opening and closing direction. That is, the repulsive force of the shield member 4 acting on the lid 3 can be reduced as compared with the conventional shield housing structure. Therefore, there is no need to reinforce the lid 3, and the housing can be manufactured at lower cost.

Electromagnetic waves that intrude from the outside of the box 2 or leak from the inside of the housing 2 are connected to the first gap γ1 and the second gap γ2 at a substantially right angle. The possibility that the number of times of reflection of the electromagnetic wave is increased as compared with the case of only the above, and the degree of attenuation increases due to reflection and interference between the electromagnetic waves. Therefore, the electromagnetic wave can be effectively shielded by the conductive member 7 provided in the second gap γ2.

In the shield housing structure 1 according to the present embodiment, as described above, the periphery 2a of the opening of the box 2 is provided.
Is bent inward at a right angle in cross section, and the bent portion is folded in the direction of the lid 3 so that the cross section becomes an acute angle close to a right angle. As a result, the second gap γ2
Gradually increases toward the first gap γ1.
Therefore, it is possible to prevent the opening peripheral portion 2a of the box 2 and the wall 7b of the conductive member 7 from acting as an antenna, and to prevent radiation noise of a specific frequency from increasing.
The reason is that the resonance point of the electromagnetic wave can be dispersed by making the second gap wide. Further, the possibility that the number of times of reflection of the incident electromagnetic wave increases is increased, and the electromagnetic wave can be effectively attenuated by the reflection and the interference between the electromagnetic waves. For example, in FIG. 3, when the electromagnetic wave passing through the first gap γ1 and reflected on the wall 7b of the conductive member 7 is reflected on the periphery 2a of the opening of the box 2, the electromagnetic wave may be reflected above the horizontal. Will be higher. Therefore, there is a high possibility that the number of times of reflection of the electromagnetic wave increases, and the electromagnetic wave can be effectively attenuated. Further, for example, as shown in FIG. 1, when the lid 3 is opened and closed around the hinge 5, that is, when the lid 3 is not lifted right above, the shield member 4 is opened and closed. Box 2
It is conceivable that a load greater than the load applied to the shield member 4 when the lid 3 is closed is applied to the opening peripheral portion 2a. On the other hand, since the second gap γ2 is gradually widened toward the first gap γ1 as described above, the load applied to the shield member 4 when the lid 3 is opened and closed can be reduced. Result, shield member 4
And the deterioration of the lid 3 can be suppressed.

Furthermore, in the shield housing structure 1 of the present embodiment, only the waterproof packing 6 of the shield member 4 is used in the first case.
By disposing the conductive member 7 in the second gap γ2 and the conductive member 7 in the second gap γ2, the length of the first gap γ1 can be reduced. As a result, the width of the opening peripheral portion 2a of the box 2 can be reduced, and when the width of the opening surface of the box 2 is the same, the opening can be increased.

As described above, the present invention is not limited to such an embodiment, and can be implemented in various forms without departing from the gist of the present invention. For example, in the above embodiment, the shield member 4 is formed integrally with the waterproof packing 6 and the conductive member 7, but the waterproof packing having the waterproof function and the conductive member having the electromagnetic wave shielding function are separate members. You may. Further, although a thin plate-shaped conductive member is used as the electromagnetic wave shielding member, a member in which a core material is covered with a wire mesh may be used.

Next, a method of fixing the shield member will be described.
A description will be given based on the end views of FIGS. 6, 7, and 8. FIG. In the above embodiment, a substantially perpendicular locking wall 3b is provided on the inner surface 3a of the lid 3, and the shield member 4 is attached to the inner surface 3a of the lid 3.
6A, the portion corresponding to the wall portion 6b of the above embodiment is formed by using an elastomer material 33c harder than the waterproof packing 33a, as shown in FIG. 6A. If the waterproof packing 33a and the conductive member 33b are integrated, it may be possible to fix the shield member 33 only to the inner surface 31a of the lid 31 without providing a locking wall. In the case where the waterproof packing and the conductive member are integrated by using such a hard elastomer material, as shown in FIG. 6B, a locking wall having a cross section substantially perpendicular to the inner surface 41 a of the lid 41 is provided. 41b, and an engaging groove 43 for engaging the locking wall 41b in the elastomer material 43c.
It is also conceivable that d is formed and the shield member 43 is fixed by engaging with the locking wall 41b. In FIG. 6B,
In order to more securely fix the shield member 43 to the locking wall 41b, a surface opposing the locking wall 41b is formed in the conductive member 43b, a predetermined portion of this surface is cut, and The claws 43e are cut and raised and fixed.

When the elastomer material is engaged with the locking wall as described above, the locking wall is not limited to being provided on the inner surface of the lid so as to be substantially perpendicular in cross section. For example, as shown in FIG. 7A, a locking wall 51b is provided to form a parallel gap with the inner surface 51a of the lid 51.
It is also conceivable that the elastomer material 53c is engaged with and fixed to b. The same applies to FIG. 7B. Further, as shown in FIG. 8, a concave portion 71b may be formed in the inner surface 71a of the lid 71, and the conductive member 73b may be fitted into the concave portion 71.

[Brief description of the drawings]

FIG. 1 is an end view showing a shield housing structure of an embodiment, where (a) shows an open state of an opening and (b) shows a closed state of the opening.

FIG. 2 is an end view showing a lid and a shield member in the shield housing structure of the embodiment.

FIG. 3 is an end view showing a state in which a shield member fixed to a lid and a box are engaged in the shield housing structure of the embodiment.

FIG. 4 is a perspective view of a conductive member constituting the shield member of the embodiment.

FIG. 5 is a schematic diagram for explaining the invention in comparison with a conventional configuration.

FIG. 6 is an end view showing a shield housing structure of another embodiment.

FIG. 7 is an end view showing a shield housing structure of another embodiment.

FIG. 8 is an end view showing a shield housing structure of another embodiment.

FIG. 9 is an end view showing a conventional shield housing structure.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Shield housing structure 2 ... Box 2a ... Periphery of opening 3 ... Lid 3a ... Inner surface 3b ... Locking wall 3c ... Peripheral part 4 ... Shield member 5 ... Hinge 6 ... Waterproof packing 6a ... Cylindrical part 6b ... Wall portion 6c: convex portion 7: conductive member 7a: claw portion 7b: wall portion 7c: small claw portion 7d: lid close contact portion 11, 21, 31, 41, 51, 61, 71: lid 11a, 21a, 31a, 41a, 51a, 61a, 7
1a: Surface 11b, 21b: Electromagnetic wave shielding wall 13, 23: Shield member 13a, 23a: Waterproof packing 13b, 23b
... Electromagnetic wave shielding members 12,22 ... Boxes 12a, 22a
... Opening periphery 12b, 22b ... Surface 32 ... Box 32a ... Opening periphery 41b, 51
b, 61b: locking wall 33, 43, 53, 63, 73: shield member 33a, 43a, 53a, 63a, 73a: waterproof packing 33b, 43b, 53b, 63b, 73b: conductive member 33c, 43c, 53c, 63c , 73c ... elastomer material 43d, 53d, 63d ... engagement groove 43e, 53
e, 63e claw portion 71b concave portion α1, β1, γ1 first gap α2, β2, γ
2 ... second gap

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-8-172289 (JP, A) JP-A-9-41776 (JP, A) JP-A-1-156598 (JP, U) JP-A-59 173398 (JP, U) Japanese Utility Model 4-32595 (JP, U) Japanese Utility Model Application No. Sho 61-183597 (JP, U) Japanese Utility Model Application No. 63-55585 (JP, U) Japanese Utility Model Utility Model No. 6-31200 (JP, U) JP-A 4-134896 (JP, U) JP-A 3-85697 (JP, U) JP-A 63-6799 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) H05K 9/00

Claims (5)

(57) [Claims] 1. A box having an opening, a lid for closing and opening the opening of the box, an electromagnetic wave shielding function and a waterproof function, and a periphery of the opening of the box and the lid. And a shield member disposed in a first gap formed between the inner surface of the cover and a shield member disposed in a first gap. By providing a surface facing the wall in the periphery of the opening of the box, the second gap communicating between the electromagnetic wave shielding wall and the periphery of the opening of the box at a substantially right angle in cross section to the first gap is provided. A shield housing structure, wherein a gap is formed, and at least a part of the shield member is sandwiched between the electromagnetic wave shielding wall and a periphery of an opening of the box, and is disposed in the second gap. 2. The shield case structure according to claim 1, wherein the shield member is an integrally formed member including at least an electromagnetic wave shield member having an electromagnetic wave shielding function and a waterproof packing having a waterproof function. A shield housing structure, wherein at least one of an electromagnetic wave shield member and the waterproof packing is formed so as to be arranged in the second gap. 3. The shield housing structure according to claim 2, wherein the electromagnetic wave shielding wall is formed integrally with the shield member as a part of the shield member. 4. The shield housing structure according to claim 1, wherein the electromagnetic wave shielding wall or the electromagnetic wave is formed such that the second gap gradually widens toward the first gap. A shield housing structure, wherein at least one of surfaces provided around an opening of the box facing a shielding wall is provided at a predetermined angle with respect to a surface inside the lid. 5. A shield member used for closing a gap between a peripheral portion of an opening of a box having an opening and a peripheral portion of a lid for closing and opening the opening of the box, wherein the shielding member has a waterproof function. A waterproof packing having an electromagnetic wave shielding function connected to the waterproof packing at a substantially right angle in cross section and having an electromagnetic wave shielding function; and an electromagnetic wave shielding member connected to the electromagnetic wave shielding wall. When the opening is closed, the waterproof packing is sandwiched between the periphery of the opening of the box and the inner surface of the lid to form the periphery of the opening of the box and the inner surface of the lid. And a second gap formed between the electromagnetic wave shielding wall and a peripheral portion of the opening of the box body, the second gap communicating with the first gap at a substantially right angle in cross section, The electromagnetic wave shielding member is located around an opening of the box. Shielding members, characterized by being configured to close the second gap and pressure.